Spectrophotometric determination of rhodium(III) and iridium(III) with 3-hydroxy-2-methyl-1,4-naphthoquinone 4-oxime.

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概要

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• Rhodium(III) and iridium(III) form 1:3 and 1:2 (metal:ligand) complex, respectively with 3-hydroxy-2-methyl-1,4-naphthoquinone 4-oxime (HMNQM). The complexes are soluble in 20% ethanol. The reagent has been used for the spectrophotometric determination of Rh(III) and Ir(III). The optimum ranges of concentration for the determination of Rh(III) and Ir(III) are 0.27–5.24 and 1.51–15.85 over the pH range 5.0–7.5 and 5.3–8.0, respectively. The Sandell sensitivities for the determination of Rh(III) and Ir(III) are 0.0042 and 0.015 μg cm<SUP>−2</SUP>, respectively. The determinations have also been carried out in the presence of foreign ions.

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著者

• Shravah Kamini

  Department of Chemistry, University of Delhi

• Sindhwani S.

  Department of Chemistry, University of Delhi

関連論文

• Spectrophotometric determination of rhodium(III) and iridium(III) with 3-hydroxy-2-methyl-1,4-naphthoquinone 4-oxime.

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